An angry parents group are to write letters of complaint to Premier League chairman as the full price of kits for children was revealed.

New research from parenting website Mumsnet, has revealed that average cost of a junior replica kit (for an eight year-old) stands at £57.54, with popular clubs such as Manchester City, Chelsea, Liverpool and Manchester United all charging over £60.

If the child also wants to have names, badges and logos on his kit then the price of the kit tops £80.

A group called 'Labour Behind the Label' has estimated that the kits cost around £9 to make meaning that in some cases clubs are marking up the kits by over 500 per cent.

Mumsnet conducted a survey of 1,000 parents, and 97 per cent said the kits offered poor value for money, with 80 per cent going as far as to say they were "a rip-off."

The group are now writing to all 20 Premier League chairman to express their displeasure at the prices.

"Parents love seeing their kids enjoying football, and child supporters are often amongst the clubs' most loyal fans," said Mumsnet co-founder and CEO Justine Roberts.

"But the cost of showing support is a real concern; it's really hard to be the parent who says 'no' to the requests for the latest kits but these days you need a small fortune to buy a complete replica."

Among the findings made by Mumsnet included:

- Aston Villa and Manchester City sell the most expensive kit, charging kids £63 for a full junior strip.

- The cost of the new junior Arsenal kit including name, number, badges and logos is £81.

- Manchester City sell the most expensive junior shorts, at £20 a pair.

- Chelsea and Aston Villa charge £10 for socks.

- Three clubs - Liverpool, Stoke and Tottenham Hotspur - have so far put details online for the cost of all three kits for the 2011/12 season (home kit, away kit and change kit). On average, all three kits would cost an 8 year old an extraordinary £173.72, or £237.56 with name, numbers and logos.